12. the major cause of water pollution by industries a. plastics b. toxic chemicals c. pathogens d. sediments

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

What is the importantence of the carbon and nitretan cycles in the environment

This comparative chart is an example of one that might be used by scientists and law enforcement personnel for identification purposes. the chart represents a technological advance called